Understanding TCP/IP Model Internals and Interfaces

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1508 Understanding TCP/IP Model Internals and Interfaces CONFIDENTIAL – RESTRICTED ACCESS: This information may not be disclosed, copied, or transmitted in any format without the prior written consent of OPNET Technologies, Inc. © 2010 OPNET Technologies, Inc. 30
1508 Understanding TCP/IP Model Internals and Interfaces Lab 3: Interfacing a Custom Lower Layer to IP Overview The OPNET IP model has an open API that allows any custom MAC layer to interface with IP. In this lab you will interface a simple MAC layer to IP. Any lower layer interfacing with IP must perform the following four steps. • Address assignment • Process Registry • Handle packets coming from IP • Handle packets coming in from the network Objectives • Interface the simple_mac MAC model to IP • Use a test network to verify proper operation Instructions The simple_mac Process The simple_mac process provides a custom lower layer which can be interfaced with the IP layer. This process will be used throughout this lab. 1. Open the process model simple_mac present in the C:\op_models directory. CONFIDENTIAL – RESTRICTED ACCESS: This information may not be disclosed, copied, or transmitted in any format without the prior written consent of OPNET Technologies, Inc. © 2010 OPNET Technologies, Inc. 31
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Understanding TCP/IP Model Internals and Interfaces

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